Great news about YouTube videos! Since 28 of August is possible to watch (some) YouTube videos with subtitles! Users can also add subtitles to their own videos with option to active or not this feature in different languages from YouTube platform. There are 120 languages available to select to your own videos; to use a subtitle you fist have to upload a caption file or if want to add more than one language you have to upload a separate file for each language.
You can watch a video from BBC with captions. This is an excellent feature from YouTube team, now people from different countries can watch videos with their language of choice (if available). But you can learn more about this feature on the link below.
Website: YouTube Blog